单片机上下限温度报警器设计大学毕设论文

陕西理工学院课程设计实验报告课 程： 单片机原理及应用题 目：上下限温度报警器学 号：姓 名：班 级：指导老师：时 间：09.10.12-09.10.30摘 要随着时代的进步和进展，单片机技术已经普及到我们生活，工作，科研，各个领域，已经成为一种比较成熟的技术,本文将介绍一种基于单片机控制的药库温度报警系统，本温度报警系统可以设置报警温度，当温度不在设置范围内时，可以报警。 目录前言 ··················································································································1.方案论证1.1.设计要求································································································5 1.2.设计方案论证·······························································································5 1.3.总体设计框图·······························································································62.系统组成及工作原理 2.1.DS18B20温度传感器与单片机接口电路····················································7 2.2.7断LED数码管电路及原理··············································································8 2.3.系统整体硬件电路·····················································································10 2.4.显示电路 ·······································································································...